MSS SP-85 SDNR Valve

Our MSS SP-85 SDNR Valve is a screw down non return globe check valve built fully to MSS SP-85 2011 North American industry standards, matched with ANSI Class 125 and 150 flanged pipeline systems. Face-to-face length strictly follows ANSI B16.10, and flange hole layout complies with ANSI B16.1 2020 specification, enabling direct replacement of standard US piping valves without on-site pipe cutting or rework.
Two structural variants are available: angle type and straight through SDNR valve, covering full size range from 1.5" up to 12". Valve body offers GG25 cast iron and GGG40 ductile iron options, with bronze or stainless steel sealing surfaces to deliver reliable bi-directional shutoff for water, light oil and non-corrosive gas pipelines.

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Technical Standard & Working Parameters

Design Standard	MSS SP-85-2011
Face-to-Face Dimension	ANSI B16.10 Class 125/150
Flange Drilling Standard	ANSI B16.1-2020 Class 125
Rated Working Pressure	125S, 150S, 200WOG, 250WOG
Applicable Media	Clean Water, Light Fuel Oil, Non-Corrosive Industrial Gas

Assembly Engineering Drawings

Straight Type MSS SP-85 SDNR Valve Drawing

This assembly diagram covers sizes 1.5" to 12", with complete part number marking, flange dimension table and full material breakdown for straight pipeline installation.